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A hydraulic lift in a garage has two pistons: a small one of cross-sectional area 4.10cm2 and a large one of cross-sectional area 260cm2 . If this lift is designed to raise a 3500- car, what minimum force must be applied to the small piston?
Two stationary positive point charges, charge 1 of magnitude 3.10 nC and charge 2 of magnitude 1.74 nC, are separated by a distance of 36 cm. An electron is free from rest at the point midway between the two charges, and it moves along the line con..
A glass soda bottle is emptied of soda and filled to the very top with water. A cork is carefully fitted into the top of the bottle, leaving no air between the cork and the water.
An object placed on an equal-arm balance scale requires 12 kg to balance it. When object is placed on a spring scale, the spring scale reads 12 kg.
block A which is 19.3 N is placed on a frictionless ramp that is inclined at 15 degrees. Block B which is 15.7 N is placed on top of the block, estimate the tension in the cord
A diver can change his rotational inertia by drawing his arms and legs close to his body in the tuck position, what was his angular velocity when he left the diving board
A large electromagnet coil is connected to a 118 -Hz ac source. The coil has a resistance 450 ohms, What is the inductance of the coil
A particle with a charge of 4C and a mass of 12kg is travelling in a circular path around a fixed particle of charge -3C. The velocity is observed to be 3x10^3 meters per second. what is the radius of the circular path?
While the microphone is inside the tube it may be at the center or close to the wall. How would it affect the measurement
How much energy is dissipated during the 5 minute interval.
why to Assume charge 1 is located at the origin of x axis. A ball is thrown directly downward with an initial speed of 8.70 m/s, from a height of 30.6 m. After what time interval does it strike the ground.
A microwave radio transmitter emits electromagnetic waves of a single wavelength. calculate the maximum magnetic field at this distance
An astronaut weighs 152 N on the surface of the moon. If the same astronaut orbits the moon at an altitude equal to the moons radius, what gravitational force does the moon exert on him at this altitude?
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